Engine - Coolant Temperature Sensor/Switch: Testing and Inspection

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION [L5]

ECT Sensor Resistance Inspection

1. Disconnect the negative battery cable.

2. Drain the engine coolant. Service Precautions

3. Remove the battery. Removal and Replacement

4. Remove the ECT sensor. Service and Repair

5. Place the ECT sensor in water with a thermometer, and heat the water gradually.

6. Measure the resistance between the ECT sensor terminals A and B using an ohmmeter.






- If not as specified, replace the ECT sensor.
Service and Repair
Specification